[ { "path": "README.md", "content": "# nowcoder问答平台\n\n**本项目是一个基于 SpringBoot 的问答平台。数据库使用了 redis 和 mysql，实现注册登录、点赞点踩、评论站内信、Timeline 事件流等功能，同时通过一个异步消息框架来实现事件的异步处理，并使用爬虫对网站进行数据填充。**\n\n## 目录\n\n- [项目的基本框架及配置](#项目的基本框架及配置)\n- [AOP 和 IOC](#AOP-和-IOC)\n- [MySQL 和 MyBatis](#MySQL-和-MyBatis)\n- [注册与登录的实现](#注册与登录的实现)\n- [发表问题和敏感词过滤](#发表问题和敏感词过滤)\n- [发表评论和站内信](#发表评论和站内信)\n- [Redis 实现点赞和点踩功能](#Redis-实现点赞和点踩功能)\n- [异步消息机制](#异步消息机制)\n- [关注和粉丝列表的实现](#关注和粉丝列表的实现)\n- [推拉模式下的 Feed 流](#推拉模式下的-Feed-流)\n- [使用爬虫对网站进行数据填充](#使用爬虫对网站进行数据填充)\r\n- [将项目部署到 Linux 虚拟机](#将项目部署到-Linux-虚拟机)\n- [功能扩展](#功能扩展)\n\n## 项目的基本框架及配置 ##\n\n创建 git 仓库，本地配置 IDEA 并测试 pull 和 push。\n \n创建 SpringBoot 工程，导入 web，velocity 和 aop 的包。\n \n生成 maven 项目，pom.xml 包含上述依赖。\n \nController 中使用注解配置，requestmapping，responsebody 基本可以解决请求转发以及响应内容的渲染。responsebody 自动选择 viewresolver 进行解析。\n\n使用 pathvariable 和 requestparam 传递参数，使用 velocity 编写页面模板，注意其中的语法使用。常用 $!{} 和 ${}。\n \n使用 HTTP 规范下的 httpservletrequest 和 httpservletresponse 来封装请求和相响应，使用封装好的 session 和 cookie 对象。\n \n使用重定向的 redirectview 和统一异常处理器 exceptionhandler。\n\n## AOP 和 IOC ##\n\nIOC 解决对象实例化以及依赖传递问题，解耦。\n \nAOP 解决纵向切面问题，主要实现日志和权限控制功能。\n \nAspect 实现切面，并且使用 logger 来记录日志，用该切面的切面方法来监听 Controller。\n\n有关 Spring 框架中 IOC 容器和 AOP 动态代理的相关知识可参见 [simple-spring](https://github.com/hzcforever/simple-spring)。\n\n## MySQL 和 MyBatis ##\n\n使用 MySQL 创建数据库和表。\n \n加入 MyBatis和 MySQL 的 maven 仓库，注意，由于现在版本的 SpringBoot 不再支持 velocity 进而导致我使用较早版本的 SpringBoot，所以这里提供一可以正常运行的版本设置。\n\nSpringBoot 使用1.4.0，mybatis-spring-boot-starter 使用1.2.1，mysql-connector-java 使用8.0.12。\n \n注意 MyBatis 的注解语法以及 xml 的配置要求，xml 要求放在 resource 中并且与 DAO 接口在相同的包路径下。\n \napplication.properties 增加 Spring 配置数据库链接地址。\n \n两个小工具：\n\n- ViewObject:方便传递任何数据到\n- VelocityDateTool:velocity 自带工具类\n \n写好静态文件 html、css 和 js，并且注意配置。\n\n- spring.velocity.suffix=.html 保证跳转请求转发到 html 上\n- spring.velocity.toolbox-config-location=toolbox.xml\n\n## 注册与登录的实现 ##\n\n新建数据表 login_ticket 用来存储 ticket 字段。该字段在用户登录成功时被生成并存入数据库，并被设置为 Cookie，下次用户登录时会带上这个 ticket，ticket 是随机的 UUID 字符串，有过期时间以及有效状态。\n\n使用拦截器 interceptor 来拦截所有用户请求，判断请求中是否存在有效的 ticket，如果有就将用户信息写入 Threadlocal。所有线程的 threadlocal 都被存在一个叫做 hostholder 的实例中，根据该实例就可以在全局任意位置获取用户的信息。\n\n该 ticket 的功能类似 Session，也是通过 Cookie 写回浏览器，浏览器请求时再通过 Cookie 传递，区别是该字段是存在数据库中的，并且可以用于移动端。\n\n通过用户访问权限拦截器来拦截用户的越界访问，比如用户没有管理员权限就不能访问管理员页面。\n\n数据安全性的保障手段：HTTPS 使用公钥加密私钥解密，比如支付宝的密码加密，单点登录验证，验证码机制等。\n\n## 发表问题和敏感词过滤 ##\n\n发布问题时检查标题和内容，防止 xss 注入，并且过滤敏感词。\n\n防止 xss 注入直接使用 HTMLutils 的方法即可实现。\n\n过滤敏感词首先需要建立一个字典树，并且读取一份保存敏感词的文本文件，然后初始化字典树。最后将过滤器作为一个服务，让需要过滤敏感词的服务进行调用即可。\n\n## 发表评论和站内信 ##\n\n首先建立表 comment 和 message 分别代表评论和站内信。\n\n评论的逻辑是每一个问题下面都有评论，显示评论数量，具体内容，评论人等信息。\n\n消息的逻辑是，两个用户之间发送一条消息，有一个唯一的会话 id，这个会话里可以有多条这两个用户的交互信息。通过一个用户 id 获取该用户的会话列表，再根据会话 id 再获取具体的会话内的多条消息。\n\n逻辑清楚之后，再加上一些附加功能，比如显示未读消息数量，根据时间顺序排列会话和消息。\n\n本节内容基本就是业务逻辑的开发，没有新增什么技术点，主要是前后端交互的逻辑比较复杂，前端的开发量也比较大。\n\n## Redis 实现点赞和点踩功能 ##\n\n首先了解一下 Redis 的基础知识，数据结构，Jedis 使用等。\n\n编写list，string，hashmap，set，sortset的测试用例，熟悉 Jedis API。\n\n开发点踩和点赞功能，在此之前根据业务封装好 Jedis 的增删改查操作，放在 util 包中。\n\n根据需求确定 key 字段，格式是——like：实体类型：实体id 和 dislike：实体类型：实体 id。这样可以将喜欢一条新闻的人存在一个集合，不喜欢的存在另一个集合。通过统计数量可以获得点赞和点踩数。\n\n一般点赞点踩操作是先修改 Redis 的值并获取返回值，然后再异步修改 MySQL 数据库的 likecount 数值。这样既可以保证点赞操作快速完成，也可保证数据一致性。\n\n## 异步消息机制 ##\n\n在之前的功能中有一些不需要实时执行的操作或者任务，我们可以把它们改造成异步消息来进行发送。\n\n具体操作就是使用 Redis 来实现异步消息队列。代码中使用事件 Event 来包装一个事件，事件需要记录事件实体的各种信息：一个异步工具类（事件生产者 + 事件消费者 + EventHandler 接口），让以后各种事件的实现类来实现这个接口。\n\n事件生产者一般作为一个服务，由 Controller 中的业务逻辑调用并产生一个事件，将事件序列化存入 Redis 队列中，事件消费者则通过一个线程循环获取队列里的事件，并且寻找对应的 handler 进行处理。\n\n整个异步事件的框架开发完成，后面新加入的登录，点赞等事件都可以这么实现。\n\n## 关注和粉丝列表的实现 ##\n\n新增关注功能，使用 Redis 实现每一个关注对象的粉丝列表以及每一个用户的关注对象列表。通过该列表的 crud 操作可以对应获取粉丝列表和关注列表，并且实现关注和取关功能。\n\n由于关注成功和添加粉丝成功时同一个事务里的两个操作，可以使用 Redis 的事务 multi 来包装事务并进行提交。\n\n除此之外，关注成功或者被关注还可以通过事件机制来生成发送邮件的事件，由异步的队列处理器来完成事件响应，同样是根据 Redis 来实现。\n\n对于粉丝列表，除了显示粉丝的基本信息之外，还要显示当前用户是否关注了这个粉丝，以便前端显示。\n\n对于关注列表来说，如果被关注对象是用户的话，除了显示用户的基本信息之外，还要显示当前用户是被这个用户关注，以便前端显示。\n\n## 推拉模式下的 Feed 流 ##\n\n微博的新鲜事功能介绍：关注好友的动态（好友的点赞和发表的问题等），关注了某个问题，这些都是 feed 流的一部分。\n\n在知乎中的 feed 流主要体现于：关注用户的评论行为，关注用户的关注问题行为。\n\nfeed 流主要分为两种，推模式和拉模式。推模式主要是把新鲜事推送给关注该用户的粉丝，本例使用 Redis 来存储某个用户接受的新鲜事 id 列表，这个信息流又称为 timeline，根据用户的唯一 key 来存储；拉模式主要是用户直接找寻自己所有关注的人，并且到数据库去查找这些关注对象的新鲜事，直接返回。\n\n推模式主要适合粉丝较少的小用户，因为他们的粉丝量少，使用推模式产生的冗余副本也比较少，并且可以减少用户访问的压力。\n\n拉模式主要适合大v，因为很多僵尸粉和非活跃用户根本不需要推送信息，用推模式发给这些僵尸粉或者非活跃用户就是浪费资源。所以让用户通过拉模式请求，只需要一个数据副本即可。同时如果是热点信息，这些信息也可以放在缓存，让用户首先拉取这些信息，提高查询效率。\n\n使用 feedhandler 异步处理上述的两个事件，当事件发生时，根据事件实体进行重新包装，构造一个新鲜事，因为所有新鲜事的格式是一样的。需要包括：日期，新鲜事类型，发起者，新鲜事内容，然后把该数据存入数据库，以便用户使用 pull 模式拉出。\n\n为了适配推送模式，此时也要把新鲜事放到该用户所有粉丝的 timeline 里，这样的话就同时实现了推和拉的操作了。\n\n## 使用爬虫对网站进行数据填充 ##\n\n安装 Python3.x 并且配置环境变量。同时安装 PyCharm ,安装 pip。\n\n安装好以后，先熟悉 Python 的语法，写一些例子，比如数据类型，操作符，方法调用，以及面向对象的技术。\n\n因为数据是要导入数据库的，所以这里安装 MySQLdb 的一个库，并且写一下连接数据库的代码，写一下简单的crud进行测试。\n\n使用 requests 库作为解析 HTTP 请求的工具，使用 beautifulsoup 作为解析 html 代码的工具，请求之后直接使用 css 选择器匹配。即可获得内容。\n\n当然现在我们有更方便的工具 pyspider，可以方便解析请求并且可以设置代理，伪装身份等，直接传入 url 并且写好多级的解析函数，程序便会迭代执行，直到把所有页面的内容解析出来。这里我们直接启动 pyspider 的 web 应用并且写好 Python 代码，就可以执行爬虫了。\n\n知乎：先找到问题，再把问题下所有的回答进行爬取，最后把问题和评论一起处理。\n\n## 将项目部署到 Linux 虚拟机\n\n因为该项目只是个练手的 demo，没有必要买服务器，所以就打算直接部署到虚拟机上，把整个软件开发的流程过一遍。安装的是 VMware，下载的镜像是 CentOS 7 x86_64，依次安装了 JDK 1.8、Tomcat 8、MySQL 8.0 和 Redis（所有的配置过程网上博客都写得很详细，这里不加赘述）。\n\n
\n\n通过 Xshell 6 连接虚拟机。\n\n把从 IDEA 编译导出的 jar 包发到虚拟机的文件夹，通过 `java -jar 文件名.jar` 将项目部署到 CentOS 上，当看到下面两个红色矩形框中的信息时，说明部署成功。\n\n

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\n\n在主机上通过虚拟机的 ip 和对应的端口访问网页（相关功能请自行 fork 后导入 IDEA 并启动，在这里简要贴出几张效果图以便参考）：\n\n

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\n\n## 功能扩展 ##\n\n- 用户注册，邮箱激活流程\n- 管理员后台管理\n- timeline 推拉结合\n- 个性化首页，timeline 更多事件\n- 搜索结果排序打分\n- 通过 MQ 实现解耦、异步和削峰\r\n\r\n......\n\n\n" }, { "path": "wenda/.idea/compiler.xml", "content": "\n\n \n \n \n \n \n \n \n \n \n \n \n \n \n" }, { "path": "wenda/.idea/encodings.xml", "content": "\n\n \n \n \n" }, { "path": "wenda/.idea/inspectionProfiles/Project_Default.xml", "content": "\n \n \n" }, { "path": "wenda/.idea/libraries/Maven__antlr_antlr_2_7_7.xml", "content": "\n \n \n \n \n \n \n \n \n \n \n \n" }, { "path": "wenda/.idea/libraries/Maven__aopalliance_aopalliance_1_0.xml", "content": "\n \n \n \n \n \n \n \n \n \n \n \n" }, { "path": "wenda/.idea/libraries/Maven__ch_qos_logback_logback_classic_1_1_7.xml", "content": "\n \n \n \n \n \n \n \n \n \n \n \n" }, { "path": "wenda/.idea/libraries/Maven__ch_qos_logback_logback_core_1_1_7.xml", "content": "\n \n \n \n \n \n \n \n \n \n \n \n" }, { "path": "wenda/.idea/libraries/Maven__com_alibaba_fastjson_1_2_13.xml", "content": "\n \n \n 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',\n setEvents: fStaticSetEvents\n });\n\n $.extend(Component.prototype, Event, {\n initialize: fInitialize,\n render: fRender,\n getEl: fGetEl,\n html: fHtml,\n destroy: fDestroy,\n getData: fGetData,\n // 禁止滚动\n forbidScroll: fForbidScroll,\n // 重写emit\n emit: fEmit,\n // 内部方法\n _setCustomEvent: _fSetCustomEvent,\n _setDomEvent: _fSetDomEvent\n });\n\n function fStaticSetEvents() {\n var that = this;\n var aQueue = Component._domQueue;\n var oQueue;\n while (aQueue.length) {\n oQueue = aQueue.shift();\n oQueue._setDomEvent();\n oQueue.emit('render');\n }\n }\n\n function fInitialize(oConf) {\n var that = this;\n that.rawConfig = oConf;\n that.domId = 'jsCpn' + (Component._cIndex++);\n that._setCustomEvent();\n Component._domQueue.push(that);\n oConf.renderTo && that.render();\n }\n\n function fRender() {\n var that = this;\n var oConf = that.rawConfig;\n var oRenderTo = $(oConf.renderTo);\n var sRenderBy = oConf.renderBy || 'append';\n var oEl = that.getEl();\n oRenderTo[sRenderBy](oEl);\n that._setDomEvent();\n that.emit('render');\n }\n\n function fGetEl() {\n var that = this;\n if (that.$el) {\n return that.$el;\n }\n var oEl = $('#' + that.domId);\n if (oEl.get(0)) {\n that.$el = oEl;\n return oEl;\n }\n\n var sHtml = that.html();\n that.$el = $(sHtml);\n return that.$el;\n }\n\n function fHtml() {\n var that = this;\n var oConf = that.rawConfig;\n var oConstructor = that.constructor;\n var sTpl = oConstructor._tpl || Component._tpl;\n var oData = that.getData(that.rawConfig);\n var sHtml = Base.tpl(sTpl, oData);\n // id 和 class\n /* jshint ignore:start */\n sHtml = sHtml.replace(/^(\\<\\w+)([ \\>])/, '$1' + ' id=\"' + that.domId + '\"$2');\n /* jshint ignore:end */\n sHtml = sHtml.replace('class=\"', 'class=\"' + (oConf.cls || '') + ' ');\n return sHtml;\n }\n\n function fDestroy() {\n var that = this;\n var oEl = that.getEl();\n oEl.remove();\n that.emit('destroy');\n that.unbindAll();\n }\n\n function fGetData(oConf) {\n return oConf;\n }\n\n function fForbidScroll(oEl, bForbid) {\n $(oEl).css('overflow', bForbid === false ? 'auto' : 'hidden');\n }\n\n function fEmit(sName) {\n var that = this;\n if (sName === 'render') {\n if (that.rendered) {\n return;\n }\n that.rendered = true;\n }\n Event.emit.apply(that, arguments);\n }\n\n function _fSetCustomEvent() {\n var that = this;\n if (that._setedCustomEvent) {\n return;\n }\n that._setedCustomEvent = true;\n var oConf = that.rawConfig;\n var oConstructor = that.constructor;\n $.each(oConstructor.listeners, function (_, oEvent) {\n oEvent.type === 'custom' && oEvent.name && oEvent.handler && that.on(oEvent.name, oEvent.handler);\n });\n $.each(oConf.listeners, function (sName, fCb) {\n Base.isFunction(fCb) && that.on(sName, fCb);\n });\n }\n\n function _fSetDomEvent() {\n var that = this;\n if (that._setedDomEvent) {\n return;\n }\n that._setedDomEvent = true;\n var oConf = that.rawConfig;\n var oEl = that.getEl();\n var oConstructor = that.constructor;\n // 构造器上的事件\n $.each(oConstructor.listeners, function (_, oEvent) {\n oEvent.type !== 'custom' && _fBind(oEvent.name, oEvent);\n });\n // 配置上面的事件\n $.each(oConf.listeners, function (sName, oEvent) {\n Base.isObject(oEvent) && _fBind(sName, oEvent);\n });\n // 删除dom事件队列\n for (var i = Component._domQueue.length - 1; i >= 0; i--) {\n if (Component._domQueue[i] === that) {\n Component._domQueue.splice(i, 1);\n }\n }\n function _fBind(sName, oEvent) {\n var aMatch = sName.match(/^(\\S+)\\s*(.*)$/);\n var sEvent = $.trim(aMatch[1]);\n var sSelector = $.trim(aMatch[2]);\n var fHandler = oEvent.handler;\n if (Base.isFunction(fHandler)) {\n if (sSelector) {\n oEvent.type === 'bind' && oEl.find(sSelector).on(sEvent, Base.bind(fHandler, that));\n oEvent.type !== 'bind' && oEl.on(sEvent, sSelector, Base.bind(fHandler, that));\n } else {\n oEl.on(sEvent, Base.bind(fHandler, that));\n }\n }\n }\n }\n\n})(window);" }, { "path": "wenda/src/main/resources/static/scripts/main/component/popup.js", "content": "/**\nvar oPopup = new Popup({\n title: String, 标题\n content: String, 内容\n width: Number, 宽度\n close: Function, 关闭的回调\n cancel: Function, 取消的回调\n ok: Function, 确定的回调\n hasNoHeader: Boolean, true 没有头部\n hasNoFooter: Boolean, true 没有底部\n cancelTxt: 取消文案\n okTxt: 确认文案\n});\n */\n(function (window, undefined) {\n var Popup = Base.createClass('main.component.Popup');\n var Component = Base.getClass('main.component.Component');\n Base.mix(Popup, Component, {\n zIndex: 100,\n _tpl: [\n '
',\n '
',\n '#{title}',\n '',\n '
',\n '
',\n '
',\n '
#{content}
',\n '
',\n '',\n '#{cancelTxt}',\n '#{okTxt}',\n '
',\n '
',\n '
',\n '
'].join(''),\n listeners: [{\n name: 'render',\n type: 'custom',\n handler: function () {\n var that = this;\n var oConf = that.rawConfig;\n var oEl = that.getEl();\n // 常用元素\n that.titleEl = oEl.find('span.js-title');\n that.contentEl = oEl.find('div.js-content');\n that.tipsEl = oEl.find('span.js-error');\n // 调整大小\n oEl.outerWidth(oConf.width || 520);\n oConf.height && that.contentEl.outerHeight(oConf.height);\n // 禁止body滚动\n that.forbidScroll(document.body);\n // 创建遮罩层\n that.initMask();\n // 调整z-index\n oEl.css('zIndex', Popup.zIndex++);\n // 去掉头部\n oConf.hasNoHeader && oEl.find('div.js-head').remove();\n // 去掉底部\n oConf.hasNoFooter && oEl.find('div.js-footer').remove();\n // 位置居中\n that.fixPosition();\n // 绑定窗口变化事件\n that.resizeCb = Base.bind(that.fixPosition, that);\n $(window).resize(that.resizeCb);\n }\n }, {\n name: 'destroy',\n type: 'custom',\n handler: function () {\n var that = this;\n // 启动滚动\n !that.isForbidScroll && that.forbidScroll(document.body, false);\n // 移除遮罩层\n that.maskEl && that.maskEl.remove();\n // 取消窗口变化事件\n $(window).unbind('resize', that.resizeCb);\n }\n }, {\n name: 'click .js-close',\n handler: function () {\n var that = this;\n that.close();\n }\n }, {\n name: 'click .js-cancel',\n handler: function () {\n var that = this;\n var oConf = that.rawConfig;\n oConf.cancel && oConf.cancel.call(that);\n that.close(true);\n }\n }, {\n name: 'click .js-ok',\n handler: function () {\n var that = this;\n var oConf = that.rawConfig;\n // 禁止返回\n if (oConf.ok && oConf.ok.call(that) === true) {\n return;\n }\n that.close(true);\n }\n }]\n }, {\n initialize: fInitialize,\n initMask: fInitMask,\n fixPosition: fFixPosition,\n close: fClose,\n error: fError,\n getData: fGetData\n });\n\n function fInitialize(oConf) {\n var that = this;\n var oBody = $(document.body);\n oConf.renderTo = oBody;\n that.isForbidScroll = oBody.css('overflow-y') === 'hidden';\n Popup.superClass.initialize.apply(that, arguments);\n }\n\n function fInitMask() {\n var that = this;\n var oConf = that.rawConfig;\n if (!that.maskEl) {\n that.maskEl = $('
');\n oConf.renderTo.append(that.maskEl);\n }\n }\n\n function fFixPosition() {\n var that = this;\n var oEl = that.getEl();\n var oWin = $(window);\n var oDoc = $(document);\n var nElWidth = oEl.width();\n var nElHeight = oEl.height();\n var nWinWidth = oWin.width();\n var nWinHeight = oWin.height();\n var nScrollTop = Math.max(oWin.scrollTop() || oDoc.scrollTop());\n // 调整元素大小\n oEl.css({\n left: nWinWidth > nElWidth ? (nWinWidth - nElWidth) / 2 : 0,\n top: (nWinHeight > nElHeight ? (nWinHeight - nElHeight) / 2 : 0) + nScrollTop\n });\n // 调整遮罩层大小\n that.maskEl.css({\n width: '100%',\n height: nWinHeight,\n top: nScrollTop\n });\n }\n\n function fClose(bNoEmit) {\n var that = this;\n !bNoEmit && that.emit('close');\n that.destroy();\n }\n\n function fError(sContent) {\n var that = this;\n sContent = $.trim(sContent);\n that.tipsEl.html(sContent);\n that.tipsEl[sContent ? 'show' : 'hide']();\n }\n\n function fGetData(oConf) {\n var that = this;\n return {\n title: oConf.title || '提示',\n content: oConf.content,\n cancelTxt: oConf.cancelTxt || '取消',\n okTxt: oConf.okTxt || '确定'\n };\n }\n\n})(window);" }, { "path": "wenda/src/main/resources/static/scripts/main/component/popupAdd.js", "content": "/**\nvar oPopupAdd = new PopupAdd({\n data: 初始数据\n ok: Function, 发布成功后的回调\n});\n */\n(function (window) {\n var PopupAdd = Base.createClass('main.component.PopupAdd');\n var Popup = Base.getClass('main.component.Popup');\n var Component = Base.getClass('main.component.Component');\n var Util = Base.getClass('main.base.Util');\n\n Base.mix(PopupAdd, Component, {\n _tpl: [\n '
',\n '
',\n '
',\n '',\n '
',\n '
',\n '
',\n '
问题说明（可选）：
',\n '
',\n '
',\n '
',\n '
',\n '',\n '
',\n '
',\n '
',\n '
',\n '
',\n '
'].join(''),\n listeners: [{\n name: 'render',\n type: 'custom',\n handler: function () {\n var that = this;\n var oConf = that.rawConfig;\n var oEl = that.getEl();\n that.titleIpt = oEl.find('.js-title');\n that.contentIpt = oEl.find('.js-content');\n // 还原值\n oConf.data && that.val(oConf.data);\n }\n }],\n show: fStaticShow\n }, {\n initialize: fInitialize,\n val: fVal\n });\n\n function fStaticShow(oConf) {\n var that = this;\n var oAdd = new PopupAdd(oConf);\n var bSubmit = false;\n var oPopup = new Popup({\n width: 540,\n title: '提问',\n okTxt: '发布',\n content: oAdd.html(),\n ok: function () {\n var that = this;\n var oData = oAdd.val();\n if (!oData.title) {\n that.error('请填写标题');\n return true;\n }\n // 避免重复提交\n if (bSubmit) {\n return true;\n }\n bSubmit = true;\n // 提交内容\n $.ajax({\n url: '/question/add',\n type: 'post',\n data: oData,\n dataType: 'json'\n }).done(function (oResult) {\n // 未登陆，跳转到登陆页面\n if (oResult.code === 999) {\n window.location.href = '/reglogin?next=' + window.encodeURIComponent(window.location.href);\n } else {\n oConf.ok && oConf.ok.call(that);\n oAdd.emit('ok');\n }\n }).fail(function () {\n alert('出现错误，请重试');\n }).always(function () {\n bSubmit = false;\n });\n // 先不关闭\n return true;\n },\n listeners: {\n destroy: function () {\n oAdd.destroy();\n }\n }\n });\n oAdd._popup = oPopup;\n Component.setEvents();\n }\n\n function fInitialize(oConf) {\n var that = this;\n delete oConf.renderTo;\n PopupAdd.superClass.initialize.apply(that, arguments);\n }\n\n function fVal(oData) {\n var that = this;\n if (arguments.length === 0) {\n return {\n title: $.trim(that.titleIpt.val()),\n content: $.trim(that.contentIpt.val())\n };\n } else {\n oData = oData || {};\n that.titleIpt.val($.tirm(oData.title));\n that.contentIpt.val($.trim(oData.content));\n }\n }\n\n})(window);" }, { "path": "wenda/src/main/resources/static/scripts/main/component/popupMsg.js", "content": "/**\nvar oPopupAdd = new PopupAdd({\n data: 初始数据\n toName: String, 姓名\n content: String, 内容\n});\n */\n(function (window) {\n var PopupMsg = Base.createClass('main.component.PopupMsg');\n var Popup = Base.getClass('main.component.Popup');\n var Component = Base.getClass('main.component.Component');\n var Util = Base.getClass('main.base.Util');\n\n Base.mix(PopupMsg, Component, {\n _tpl: [\n '
',\n '
',\n '
发给：
',\n '
',\n '',\n '
',\n '
',\n '
',\n '
内容：
',\n '
',\n '
',\n '
',\n '
',\n '',\n '
',\n '
',\n '
',\n '
',\n '
',\n '
'].join(''),\n listeners: [{\n name: 'render',\n type: 'custom',\n handler: function () {\n var that = this;\n var oConf = that.rawConfig;\n var oEl = that.getEl();\n that.nameIpt = oEl.find('.js-name');\n that.contentIpt = oEl.find('.js-content');\n // 还原值\n oConf.data && that.val(oConf.data);\n }\n }],\n show: fStaticShow\n }, {\n initialize: fInitialize,\n val: fVal\n });\n\n function fStaticShow(oConf) {\n var that = this;\n var oAdd = new PopupMsg(oConf);\n var bSubmit = false;\n var oPopup = new Popup({\n width: 540,\n title: '发送私信',\n okTxt: '发送',\n content: oAdd.html(),\n ok: function () {\n var that = this;\n var oData = oAdd.val();\n if (!oData.toName) {\n that.error('请填写姓名');\n return true;\n }\n if (!oData.content) {\n that.error('请填写私信内容');\n return true;\n }\n // 避免重复提交\n if (bSubmit) {\n return true;\n }\n bSubmit = true;\n // 提交内容\n $.ajax({\n url: '/msg/addMessage',\n type: 'post',\n data: oData,\n dataType: 'json'\n }).done(function (oResult) {\n // 未登陆，跳转到登陆页面\n if (oResult.code === 999) {\n window.location.href = '/reglogin?next=' + window.encodeURIComponent(window.location.href);\n } else if (oResult.code !== 0) {\n that.error(oResult.msg || '出现错误，请重试');\n } else {\n oConf.ok && oConf.ok.call(that);\n oAdd.emit('ok');\n }\n }).fail(function () {\n alert('出现错误，请重试');\n }).always(function () {\n bSubmit = false;\n });\n // 先不关闭\n return true;\n },\n listeners: {\n destroy: function () {\n oAdd.destroy();\n }\n }\n });\n oAdd._popup = oPopup;\n Component.setEvents();\n }\n\n function fInitialize(oConf) {\n var that = this;\n delete oConf.renderTo;\n PopupMsg.superClass.initialize.apply(that, arguments);\n }\n\n function fVal(oData) {\n var that = this;\n if (arguments.length === 0) {\n return {\n toName: $.trim(that.nameIpt.val()),\n content: $.trim(that.contentIpt.val())\n };\n } else {\n oData = oData || {};\n that.nameIpt.val($.tirm(oData.toName));\n that.contentIpt.val($.trim(oData.content));\n }\n }\n\n})(window);" }, { "path": "wenda/src/main/resources/static/scripts/main/jquery.js", "content": "/*!\n * jQuery JavaScript Library v3.0.0\n * https://jquery.com/\n *\n * Includes Sizzle.js\n * https://sizzlejs.com/\n *\n * Copyright jQuery Foundation and other contributors\n * Released under the MIT license\n * https://jquery.org/license\n *\n * Date: 2016-06-09T18:02Z\n */\n( function( global, factory ) {\n\n\t\"use strict\";\n\n\tif ( typeof module === \"object\" && typeof module.exports === \"object\" ) {\n\n\t\t// For CommonJS and CommonJS-like environments where a proper `window`\n\t\t// is present, execute the factory and get jQuery.\n\t\t// For environments that do not have a `window` with a `document`\n\t\t// (such as Node.js), expose a factory as module.exports.\n\t\t// This accentuates the need for the creation of a real `window`.\n\t\t// e.g. var jQuery = require(\"jquery\")(window);\n\t\t// See ticket #14549 for more info.\n\t\tmodule.exports = global.document ?\n\t\t\tfactory( global, true ) :\n\t\t\tfunction( w ) {\n\t\t\t\tif ( !w.document ) {\n\t\t\t\t\tthrow new Error( \"jQuery requires a window with a document\" );\n\t\t\t\t}\n\t\t\t\treturn factory( w );\n\t\t\t};\n\t} else {\n\t\tfactory( global );\n\t}\n\n// Pass this if window is not defined yet\n}( typeof window !== \"undefined\" ? window : this, function( window, noGlobal ) {\n\n// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1\n// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode\n// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common\n// enough that all such attempts are guarded in a try block.\n\"use strict\";\n\nvar arr = [];\n\nvar document = window.document;\n\nvar getProto = Object.getPrototypeOf;\n\nvar slice = arr.slice;\n\nvar concat = arr.concat;\n\nvar push = arr.push;\n\nvar indexOf = arr.indexOf;\n\nvar class2type = {};\n\nvar toString = class2type.toString;\n\nvar hasOwn = class2type.hasOwnProperty;\n\nvar fnToString = hasOwn.toString;\n\nvar ObjectFunctionString = fnToString.call( Object );\n\nvar support = {};\n\n\n\n\tfunction DOMEval( code, doc ) {\n\t\tdoc = doc || document;\n\n\t\tvar script = doc.createElement( \"script\" );\n\n\t\tscript.text = code;\n\t\tdoc.head.appendChild( script ).parentNode.removeChild( script );\n\t}\n\n\nvar\n\tversion = \"3.0.0\",\n\n\t// Define a local copy of jQuery\n\tjQuery = function( selector, context ) {\n\n\t\t// The jQuery object is actually just the init constructor 'enhanced'\n\t\t// Need init if jQuery is called (just allow error to be thrown if not included)\n\t\treturn new jQuery.fn.init( selector, context );\n\t},\n\n\t// Support: Android <=4.0 only\n\t// Make sure we trim BOM and NBSP\n\trtrim = /^[\\s\\uFEFF\\xA0]+|[\\s\\uFEFF\\xA0]+$/g,\n\n\t// Matches dashed string for camelizing\n\trmsPrefix = /^-ms-/,\n\trdashAlpha = /-([a-z])/g,\n\n\t// Used by jQuery.camelCase as callback to replace()\n\tfcamelCase = function( all, letter ) {\n\t\treturn letter.toUpperCase();\n\t};\n\njQuery.fn = jQuery.prototype = {\n\n\t// The current version of jQuery being used\n\tjquery: version,\n\n\tconstructor: jQuery,\n\n\t// The default length of a jQuery object is 0\n\tlength: 0,\n\n\ttoArray: function() {\n\t\treturn slice.call( this );\n\t},\n\n\t// Get the Nth element in the matched element set OR\n\t// Get the whole matched element set as a clean array\n\tget: function( num ) {\n\t\treturn num != null ?\n\n\t\t\t// Return just the one element from the set\n\t\t\t( num < 0 ? this[ num + this.length ] : this[ num ] ) :\n\n\t\t\t// Return all the elements in a clean array\n\t\t\tslice.call( this );\n\t},\n\n\t// Take an array of elements and push it onto the stack\n\t// (returning the new matched element set)\n\tpushStack: function( elems ) {\n\n\t\t// Build a new jQuery matched element set\n\t\tvar ret = jQuery.merge( this.constructor(), elems );\n\n\t\t// Add the old object onto the stack (as a reference)\n\t\tret.prevObject = this;\n\n\t\t// Return the newly-formed element set\n\t\treturn ret;\n\t},\n\n\t// Execute a callback for every element in the matched set.\n\teach: function( callback ) {\n\t\treturn jQuery.each( this, callback );\n\t},\n\n\tmap: function( callback ) {\n\t\treturn this.pushStack( jQuery.map( this, function( elem, i ) {\n\t\t\treturn callback.call( elem, i, elem );\n\t\t} ) );\n\t},\n\n\tslice: function() {\n\t\treturn this.pushStack( slice.apply( this, arguments ) );\n\t},\n\n\tfirst: function() {\n\t\treturn this.eq( 0 );\n\t},\n\n\tlast: function() {\n\t\treturn this.eq( -1 );\n\t},\n\n\teq: function( i ) {\n\t\tvar len = this.length,\n\t\t\tj = +i + ( i < 0 ? len : 0 );\n\t\treturn this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );\n\t},\n\n\tend: function() {\n\t\treturn this.prevObject || this.constructor();\n\t},\n\n\t// For internal use only.\n\t// Behaves like an Array's method, not like a jQuery method.\n\tpush: push,\n\tsort: arr.sort,\n\tsplice: arr.splice\n};\n\njQuery.extend = jQuery.fn.extend = function() {\n\tvar options, name, src, copy, copyIsArray, clone,\n\t\ttarget = arguments[ 0 ] || {},\n\t\ti = 1,\n\t\tlength = arguments.length,\n\t\tdeep = false;\n\n\t// Handle a deep copy situation\n\tif ( typeof target === \"boolean\" ) {\n\t\tdeep = target;\n\n\t\t// Skip the boolean and the target\n\t\ttarget = arguments[ i ] || {};\n\t\ti++;\n\t}\n\n\t// Handle case when target is a string or something (possible in deep copy)\n\tif ( typeof target !== \"object\" && !jQuery.isFunction( target ) ) {\n\t\ttarget = {};\n\t}\n\n\t// Extend jQuery itself if only one argument is passed\n\tif ( i === length ) {\n\t\ttarget = this;\n\t\ti--;\n\t}\n\n\tfor ( ; i < length; i++ ) {\n\n\t\t// Only deal with non-null/undefined values\n\t\tif ( ( options = arguments[ i ] ) != null ) {\n\n\t\t\t// Extend the base object\n\t\t\tfor ( name in options ) {\n\t\t\t\tsrc = target[ name ];\n\t\t\t\tcopy = options[ name ];\n\n\t\t\t\t// Prevent never-ending loop\n\t\t\t\tif ( target === copy ) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\t// Recurse if we're merging plain objects or arrays\n\t\t\t\tif ( deep && copy && ( jQuery.isPlainObject( copy ) ||\n\t\t\t\t\t( copyIsArray = jQuery.isArray( copy ) ) ) ) {\n\n\t\t\t\t\tif ( copyIsArray ) {\n\t\t\t\t\t\tcopyIsArray = false;\n\t\t\t\t\t\tclone = src && jQuery.isArray( src ) ? src : [];\n\n\t\t\t\t\t} else {\n\t\t\t\t\t\tclone = src && jQuery.isPlainObject( src ) ? src : {};\n\t\t\t\t\t}\n\n\t\t\t\t\t// Never move original objects, clone them\n\t\t\t\t\ttarget[ name ] = jQuery.extend( deep, clone, copy );\n\n\t\t\t\t// Don't bring in undefined values\n\t\t\t\t} else if ( copy !== undefined ) {\n\t\t\t\t\ttarget[ name ] = copy;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// Return the modified object\n\treturn target;\n};\n\njQuery.extend( {\n\n\t// Unique for each copy of jQuery on the page\n\texpando: \"jQuery\" + ( version + Math.random() ).replace( /\\D/g, \"\" ),\n\n\t// Assume jQuery is ready without the ready module\n\tisReady: true,\n\n\terror: function( msg ) {\n\t\tthrow new Error( msg );\n\t},\n\n\tnoop: function() {},\n\n\tisFunction: function( obj ) {\n\t\treturn jQuery.type( obj ) === \"function\";\n\t},\n\n\tisArray: Array.isArray,\n\n\tisWindow: function( obj ) {\n\t\treturn obj != null && obj === obj.window;\n\t},\n\n\tisNumeric: function( obj ) {\n\n\t\t// As of jQuery 3.0, isNumeric is limited to\n\t\t// strings and numbers (primitives or objects)\n\t\t// that can be coerced to finite numbers (gh-2662)\n\t\tvar type = jQuery.type( obj );\n\t\treturn ( type === \"number\" || type === \"string\" ) &&\n\n\t\t\t// parseFloat NaNs numeric-cast false positives (\"\")\n\t\t\t// ...but misinterprets leading-number strings, particularly hex literals (\"0x...\")\n\t\t\t// subtraction forces infinities to NaN\n\t\t\t!isNaN( obj - parseFloat( obj ) );\n\t},\n\n\tisPlainObject: function( obj ) {\n\t\tvar proto, Ctor;\n\n\t\t// Detect obvious negatives\n\t\t// Use toString instead of jQuery.type to catch host objects\n\t\tif ( !obj || toString.call( obj ) !== \"[object Object]\" ) {\n\t\t\treturn false;\n\t\t}\n\n\t\tproto = getProto( obj );\n\n\t\t// Objects with no prototype (e.g., `Object.create( null )`) are plain\n\t\tif ( !proto ) {\n\t\t\treturn true;\n\t\t}\n\n\t\t// Objects with prototype are plain iff they were constructed by a global Object function\n\t\tCtor = hasOwn.call( proto, \"constructor\" ) && proto.constructor;\n\t\treturn typeof Ctor === \"function\" && fnToString.call( Ctor ) === ObjectFunctionString;\n\t},\n\n\tisEmptyObject: function( obj ) {\n\t\tvar name;\n\t\tfor ( name in obj ) {\n\t\t\treturn false;\n\t\t}\n\t\treturn true;\n\t},\n\n\ttype: function( obj ) {\n\t\tif ( obj == null ) {\n\t\t\treturn obj + \"\";\n\t\t}\n\n\t\t// Support: Android <=2.3 only (functionish RegExp)\n\t\treturn typeof obj === \"object\" || typeof obj === \"function\" ?\n\t\t\tclass2type[ toString.call( obj ) ] || \"object\" :\n\t\t\ttypeof obj;\n\t},\n\n\t// Evaluates a script in a global context\n\tglobalEval: function( code ) {\n\t\tDOMEval( code );\n\t},\n\n\t// Convert dashed to camelCase; used by the css and data modules\n\t// Support: IE <=9 - 11, Edge 12 - 13\n\t// Microsoft forgot to hump their vendor prefix (#9572)\n\tcamelCase: function( string ) {\n\t\treturn string.replace( rmsPrefix, \"ms-\" ).replace( rdashAlpha, fcamelCase );\n\t},\n\n\tnodeName: function( elem, name ) {\n\t\treturn elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();\n\t},\n\n\teach: function( obj, callback ) {\n\t\tvar length, i = 0;\n\n\t\tif ( isArrayLike( obj ) ) {\n\t\t\tlength = obj.length;\n\t\t\tfor ( ; i < length; i++ ) {\n\t\t\t\tif ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t} else {\n\t\t\tfor ( i in obj ) {\n\t\t\t\tif ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn obj;\n\t},\n\n\t// Support: Android <=4.0 only\n\ttrim: function( text ) {\n\t\treturn text == null ?\n\t\t\t\"\" :\n\t\t\t( text + \"\" ).replace( rtrim, \"\" );\n\t},\n\n\t// results is for internal usage only\n\tmakeArray: function( arr, results ) {\n\t\tvar ret = results || [];\n\n\t\tif ( arr != null ) {\n\t\t\tif ( isArrayLike( Object( arr ) ) ) {\n\t\t\t\tjQuery.merge( ret,\n\t\t\t\t\ttypeof arr === \"string\" ?\n\t\t\t\t\t[ arr ] : arr\n\t\t\t\t);\n\t\t\t} else {\n\t\t\t\tpush.call( ret, arr );\n\t\t\t}\n\t\t}\n\n\t\treturn ret;\n\t},\n\n\tinArray: function( elem, arr, i ) {\n\t\treturn arr == null ? -1 : indexOf.call( arr, elem, i );\n\t},\n\n\t// Support: Android <=4.0 only, PhantomJS 1 only\n\t// push.apply(_, arraylike) throws on ancient WebKit\n\tmerge: function( first, second ) {\n\t\tvar len = +second.length,\n\t\t\tj = 0,\n\t\t\ti = first.length;\n\n\t\tfor ( ; j < len; j++ ) {\n\t\t\tfirst[ i++ ] = second[ j ];\n\t\t}\n\n\t\tfirst.length = i;\n\n\t\treturn first;\n\t},\n\n\tgrep: function( elems, callback, invert ) {\n\t\tvar callbackInverse,\n\t\t\tmatches = [],\n\t\t\ti = 0,\n\t\t\tlength = elems.length,\n\t\t\tcallbackExpect = !invert;\n\n\t\t// Go through the array, only saving the items\n\t\t// that pass the validator function\n\t\tfor ( ; i < length; i++ ) {\n\t\t\tcallbackInverse = !callback( elems[ i ], i );\n\t\t\tif ( callbackInverse !== callbackExpect ) {\n\t\t\t\tmatches.push( elems[ i ] );\n\t\t\t}\n\t\t}\n\n\t\treturn matches;\n\t},\n\n\t// arg is for internal usage only\n\tmap: function( elems, callback, arg ) {\n\t\tvar length, value,\n\t\t\ti = 0,\n\t\t\tret = [];\n\n\t\t// Go through the array, translating each of the items to their new values\n\t\tif ( isArrayLike( elems ) ) {\n\t\t\tlength = elems.length;\n\t\t\tfor ( ; i < length; i++ ) {\n\t\t\t\tvalue = callback( elems[ i ], i, arg );\n\n\t\t\t\tif ( value != null ) {\n\t\t\t\t\tret.push( value );\n\t\t\t\t}\n\t\t\t}\n\n\t\t// Go through every key on the object,\n\t\t} else {\n\t\t\tfor ( i in elems ) {\n\t\t\t\tvalue = callback( elems[ i ], i, arg );\n\n\t\t\t\tif ( value != null ) {\n\t\t\t\t\tret.push( value );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Flatten any nested arrays\n\t\treturn concat.apply( [], ret );\n\t},\n\n\t// A global GUID counter for objects\n\tguid: 1,\n\n\t// Bind a function to a context, optionally partially applying any\n\t// arguments.\n\tproxy: function( fn, context ) {\n\t\tvar tmp, args, proxy;\n\n\t\tif ( typeof context === \"string\" ) {\n\t\t\ttmp = fn[ context ];\n\t\t\tcontext = fn;\n\t\t\tfn = tmp;\n\t\t}\n\n\t\t// Quick check to determine if target is callable, in the spec\n\t\t// this throws a TypeError, but we will just return undefined.\n\t\tif ( !jQuery.isFunction( fn ) ) {\n\t\t\treturn undefined;\n\t\t}\n\n\t\t// Simulated bind\n\t\targs = slice.call( arguments, 2 );\n\t\tproxy = function() {\n\t\t\treturn fn.apply( context || this, args.concat( slice.call( arguments ) ) );\n\t\t};\n\n\t\t// Set the guid of unique handler to the same of original handler, so it can be removed\n\t\tproxy.guid = fn.guid = fn.guid || jQuery.guid++;\n\n\t\treturn proxy;\n\t},\n\n\tnow: Date.now,\n\n\t// jQuery.support is not used in Core but other projects attach their\n\t// properties to it so it needs to exist.\n\tsupport: support\n} );\n\n// JSHint would error on this code due to the Symbol not being defined in ES5.\n// Defining this global in .jshintrc would create a danger of using the global\n// unguarded in another place, it seems safer to just disable JSHint for these\n// three lines.\n/* jshint ignore: start */\nif ( typeof Symbol === \"function\" ) {\n\tjQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];\n}\n/* jshint ignore: end */\n\n// Populate the class2type map\njQuery.each( \"Boolean Number String Function Array Date RegExp Object Error Symbol\".split( \" \" ),\nfunction( i, name ) {\n\tclass2type[ \"[object \" + name + \"]\" ] = name.toLowerCase();\n} );\n\nfunction isArrayLike( obj ) {\n\n\t// Support: real iOS 8.2 only (not reproducible in simulator)\n\t// `in` check used to prevent JIT error (gh-2145)\n\t// hasOwn isn't used here due to false negatives\n\t// regarding Nodelist length in IE\n\tvar length = !!obj && \"length\" in obj && obj.length,\n\t\ttype = jQuery.type( obj );\n\n\tif ( type === \"function\" || jQuery.isWindow( obj ) ) {\n\t\treturn false;\n\t}\n\n\treturn type === \"array\" || length === 0 ||\n\t\ttypeof length === \"number\" && length > 0 && ( length - 1 ) in obj;\n}\nvar Sizzle =\n/*!\n * Sizzle CSS Selector Engine v2.3.0\n * https://sizzlejs.com/\n *\n * Copyright jQuery Foundation and other contributors\n * Released under the MIT license\n * http://jquery.org/license\n *\n * Date: 2016-01-04\n */\n(function( window ) {\n\nvar i,\n\tsupport,\n\tExpr,\n\tgetText,\n\tisXML,\n\ttokenize,\n\tcompile,\n\tselect,\n\toutermostContext,\n\tsortInput,\n\thasDuplicate,\n\n\t// Local document vars\n\tsetDocument,\n\tdocument,\n\tdocElem,\n\tdocumentIsHTML,\n\trbuggyQSA,\n\trbuggyMatches,\n\tmatches,\n\tcontains,\n\n\t// Instance-specific data\n\texpando = \"sizzle\" + 1 * new Date(),\n\tpreferredDoc = window.document,\n\tdirruns = 0,\n\tdone = 0,\n\tclassCache = createCache(),\n\ttokenCache = createCache(),\n\tcompilerCache = createCache(),\n\tsortOrder = function( a, b ) {\n\t\tif ( a === b ) {\n\t\t\thasDuplicate = true;\n\t\t}\n\t\treturn 0;\n\t},\n\n\t// Instance methods\n\thasOwn = ({}).hasOwnProperty,\n\tarr = [],\n\tpop = arr.pop,\n\tpush_native = arr.push,\n\tpush = arr.push,\n\tslice = arr.slice,\n\t// Use a stripped-down indexOf as it's faster than native\n\t// https://jsperf.com/thor-indexof-vs-for/5\n\tindexOf = function( list, elem ) {\n\t\tvar i = 0,\n\t\t\tlen = list.length;\n\t\tfor ( ; i < len; i++ ) {\n\t\t\tif ( list[i] === elem ) {\n\t\t\t\treturn i;\n\t\t\t}\n\t\t}\n\t\treturn -1;\n\t},\n\n\tbooleans = \"checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped\",\n\n\t// Regular expressions\n\n\t// http://www.w3.org/TR/css3-selectors/#whitespace\n\twhitespace = \"[\\\\x20\\\\t\\\\r\\\\n\\\\f]\",\n\n\t// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier\n\tidentifier = \"(?:\\\\\\\\.|[\\\\w-]|[^\\0-\\\\xa0])+\",\n\n\t// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors\n\tattributes = \"\\\\[\" + whitespace + \"*(\" + identifier + \")(?:\" + whitespace +\n\t\t// Operator (capture 2)\n\t\t\"*([*^$|!~]?=)\" + whitespace +\n\t\t// \"Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]\"\n\t\t\"*(?:'((?:\\\\\\\\.|[^\\\\\\\\'])*)'|\\\"((?:\\\\\\\\.|[^\\\\\\\\\\\"])*)\\\"|(\" + identifier + \"))|)\" + whitespace +\n\t\t\"*\\\\]\",\n\n\tpseudos = \":(\" + identifier + \")(?:\\\\((\" +\n\t\t// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:\n\t\t// 1. quoted (capture 3; capture 4 or capture 5)\n\t\t\"('((?:\\\\\\\\.|[^\\\\\\\\'])*)'|\\\"((?:\\\\\\\\.|[^\\\\\\\\\\\"])*)\\\")|\" +\n\t\t// 2. simple (capture 6)\n\t\t\"((?:\\\\\\\\.|[^\\\\\\\\()[\\\\]]|\" + attributes + \")*)|\" +\n\t\t// 3. anything else (capture 2)\n\t\t\".*\" +\n\t\t\")\\\\)|)\",\n\n\t// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter\n\trwhitespace = new RegExp( whitespace + \"+\", \"g\" ),\n\trtrim = new RegExp( \"^\" + whitespace + \"+|((?:^|[^\\\\\\\\])(?:\\\\\\\\.)*)\" + whitespace + \"+$\", \"g\" ),\n\n\trcomma = new RegExp( \"^\" + whitespace + \"*,\" + whitespace + \"*\" ),\n\trcombinators = new RegExp( \"^\" + whitespace + \"*([>+~]|\" + whitespace + \")\" + whitespace + \"*\" ),\n\n\trattributeQuotes = new RegExp( \"=\" + whitespace + \"*([^\\\\]'\\\"]*?)\" + whitespace + \"*\\\\]\", \"g\" ),\n\n\trpseudo = new RegExp( pseudos ),\n\tridentifier = new RegExp( \"^\" + identifier + \"$\" ),\n\n\tmatchExpr = {\n\t\t\"ID\": new RegExp( \"^#(\" + identifier + \")\" ),\n\t\t\"CLASS\": new RegExp( \"^\\\\.(\" + identifier + \")\" ),\n\t\t\"TAG\": new RegExp( \"^(\" + identifier + \"|[*])\" ),\n\t\t\"ATTR\": new RegExp( \"^\" + attributes ),\n\t\t\"PSEUDO\": new RegExp( \"^\" + pseudos ),\n\t\t\"CHILD\": new RegExp( \"^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\\\(\" + whitespace +\n\t\t\t\"*(even|odd|(([+-]|)(\\\\d*)n|)\" + whitespace + \"*(?:([+-]|)\" + whitespace +\n\t\t\t\"*(\\\\d+)|))\" + whitespace + \"*\\\\)|)\", \"i\" ),\n\t\t\"bool\": new RegExp( \"^(?:\" + booleans + \")$\", \"i\" ),\n\t\t// For use in libraries implementing .is()\n\t\t// We use this for POS matching in `select`\n\t\t\"needsContext\": new RegExp( \"^\" + whitespace + \"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\\\(\" +\n\t\t\twhitespace + \"*((?:-\\\\d)?\\\\d*)\" + whitespace + \"*\\\\)|)(?=[^-]|$)\", \"i\" )\n\t},\n\n\trinputs = /^(?:input|select|textarea|button)$/i,\n\trheader = /^h\\d$/i,\n\n\trnative = /^[^{]+\\{\\s*\\[native \\w/,\n\n\t// Easily-parseable/retrievable ID or TAG or CLASS selectors\n\trquickExpr = /^(?:#([\\w-]+)|(\\w+)|\\.([\\w-]+))$/,\n\n\trsibling = /[+~]/,\n\n\t// CSS escapes\n\t// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters\n\trunescape = new RegExp( \"\\\\\\\\([\\\\da-f]{1,6}\" + whitespace + \"?|(\" + whitespace + \")|.)\", \"ig\" ),\n\tfunescape = function( _, escaped, escapedWhitespace ) {\n\t\tvar high = \"0x\" + escaped - 0x10000;\n\t\t// NaN means non-codepoint\n\t\t// Support: Firefox<24\n\t\t// Workaround erroneous numeric interpretation of +\"0x\"\n\t\treturn high !== high || escapedWhitespace ?\n\t\t\tescaped :\n\t\t\thigh < 0 ?\n\t\t\t\t// BMP codepoint\n\t\t\t\tString.fromCharCode( high + 0x10000 ) :\n\t\t\t\t// Supplemental Plane codepoint (surrogate pair)\n\t\t\t\tString.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );\n\t},\n\n\t// CSS string/identifier serialization\n\t// https://drafts.csswg.org/cssom/#common-serializing-idioms\n\trcssescape = /([\\0-\\x1f\\x7f]|^-?\\d)|^-$|[^\\x80-\\uFFFF\\w-]/g,\n\tfcssescape = function( ch, asCodePoint ) {\n\t\tif ( asCodePoint ) {\n\n\t\t\t// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER\n\t\t\tif ( ch === \"\\0\" ) {\n\t\t\t\treturn \"\\uFFFD\";\n\t\t\t}\n\n\t\t\t// Control characters and (dependent upon position) numbers get escaped as code points\n\t\t\treturn ch.slice( 0, -1 ) + \"\\\\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + \" \";\n\t\t}\n\n\t\t// Other potentially-special ASCII characters get backslash-escaped\n\t\treturn \"\\\\\" + ch;\n\t},\n\n\t// Used for iframes\n\t// See setDocument()\n\t// Removing the function wrapper causes a \"Permission Denied\"\n\t// error in IE\n\tunloadHandler = function() {\n\t\tsetDocument();\n\t},\n\n\tdisabledAncestor = addCombinator(\n\t\tfunction( elem ) {\n\t\t\treturn elem.disabled === true;\n\t\t},\n\t\t{ dir: \"parentNode\", next: \"legend\" }\n\t);\n\n// Optimize for push.apply( _, NodeList )\ntry {\n\tpush.apply(\n\t\t(arr = slice.call( preferredDoc.childNodes )),\n\t\tpreferredDoc.childNodes\n\t);\n\t// Support: Android<4.0\n\t// Detect silently failing push.apply\n\tarr[ preferredDoc.childNodes.length ].nodeType;\n} catch ( e ) {\n\tpush = { apply: arr.length ?\n\n\t\t// Leverage slice if possible\n\t\tfunction( target, els ) {\n\t\t\tpush_native.apply( target, slice.call(els) );\n\t\t} :\n\n\t\t// Support: IE<9\n\t\t// Otherwise append directly\n\t\tfunction( target, els ) {\n\t\t\tvar j = target.length,\n\t\t\t\ti = 0;\n\t\t\t// Can't trust NodeList.length\n\t\t\twhile ( (target[j++] = els[i++]) ) {}\n\t\t\ttarget.length = j - 1;\n\t\t}\n\t};\n}\n\nfunction Sizzle( selector, context, results, seed ) {\n\tvar m, i, elem, nid, match, groups, newSelector,\n\t\tnewContext = context && context.ownerDocument,\n\n\t\t// nodeType defaults to 9, since context defaults to document\n\t\tnodeType = context ? context.nodeType : 9;\n\n\tresults = results || [];\n\n\t// Return early from calls with invalid selector or context\n\tif ( typeof selector !== \"string\" || !selector ||\n\t\tnodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {\n\n\t\treturn results;\n\t}\n\n\t// Try to shortcut find operations (as opposed to filters) in HTML documents\n\tif ( !seed ) {\n\n\t\tif ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {\n\t\t\tsetDocument( context );\n\t\t}\n\t\tcontext = context || document;\n\n\t\tif ( documentIsHTML ) {\n\n\t\t\t// If the selector is sufficiently simple, try using a \"get*By*\" DOM method\n\t\t\t// (excepting DocumentFragment context, where the methods don't exist)\n\t\t\tif ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {\n\n\t\t\t\t// ID selector\n\t\t\t\tif ( (m = match[1]) ) {\n\n\t\t\t\t\t// Document context\n\t\t\t\t\tif ( nodeType === 9 ) {\n\t\t\t\t\t\tif ( (elem = context.getElementById( m )) ) {\n\n\t\t\t\t\t\t\t// Support: IE, Opera, Webkit\n\t\t\t\t\t\t\t// TODO: identify versions\n\t\t\t\t\t\t\t// getElementById can match elements by name instead of ID\n\t\t\t\t\t\t\tif ( elem.id === m ) {\n\t\t\t\t\t\t\t\tresults.push( elem );\n\t\t\t\t\t\t\t\treturn results;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\treturn results;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t// Element context\n\t\t\t\t\t} else {\n\n\t\t\t\t\t\t// Support: IE, Opera, Webkit\n\t\t\t\t\t\t// TODO: identify versions\n\t\t\t\t\t\t// getElementById can match elements by name instead of ID\n\t\t\t\t\t\tif ( newContext && (elem = newContext.getElementById( m )) &&\n\t\t\t\t\t\t\tcontains( context, elem ) &&\n\t\t\t\t\t\t\telem.id === m ) {\n\n\t\t\t\t\t\t\tresults.push( elem );\n\t\t\t\t\t\t\treturn results;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t// Type selector\n\t\t\t\t} else if ( match[2] ) {\n\t\t\t\t\tpush.apply( results, context.getElementsByTagName( selector ) );\n\t\t\t\t\treturn results;\n\n\t\t\t\t// Class selector\n\t\t\t\t} else if ( (m = match[3]) && support.getElementsByClassName &&\n\t\t\t\t\tcontext.getElementsByClassName ) {\n\n\t\t\t\t\tpush.apply( results, context.getElementsByClassName( m ) );\n\t\t\t\t\treturn results;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Take advantage of querySelectorAll\n\t\t\tif ( support.qsa &&\n\t\t\t\t!compilerCache[ selector + \" \" ] &&\n\t\t\t\t(!rbuggyQSA || !rbuggyQSA.test( selector )) ) {\n\n\t\t\t\tif ( nodeType !== 1 ) {\n\t\t\t\t\tnewContext = context;\n\t\t\t\t\tnewSelector = selector;\n\n\t\t\t\t// qSA looks outside Element context, which is not what we want\n\t\t\t\t// Thanks to Andrew Dupont for this workaround technique\n\t\t\t\t// Support: IE <=8\n\t\t\t\t// Exclude object elements\n\t\t\t\t} else if ( context.nodeName.toLowerCase() !== \"object\" ) {\n\n\t\t\t\t\t// Capture the context ID, setting it first if necessary\n\t\t\t\t\tif ( (nid = context.getAttribute( \"id\" )) ) {\n\t\t\t\t\t\tnid = nid.replace( rcssescape, fcssescape );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tcontext.setAttribute( \"id\", (nid = expando) );\n\t\t\t\t\t}\n\n\t\t\t\t\t// Prefix every selector in the list\n\t\t\t\t\tgroups = tokenize( selector );\n\t\t\t\t\ti = groups.length;\n\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\tgroups[i] = \"#\" + nid + \" \" + toSelector( groups[i] );\n\t\t\t\t\t}\n\t\t\t\t\tnewSelector = groups.join( \",\" );\n\n\t\t\t\t\t// Expand context for sibling selectors\n\t\t\t\t\tnewContext = rsibling.test( selector ) && testContext( context.parentNode ) ||\n\t\t\t\t\t\tcontext;\n\t\t\t\t}\n\n\t\t\t\tif ( newSelector ) {\n\t\t\t\t\ttry {\n\t\t\t\t\t\tpush.apply( results,\n\t\t\t\t\t\t\tnewContext.querySelectorAll( newSelector )\n\t\t\t\t\t\t);\n\t\t\t\t\t\treturn results;\n\t\t\t\t\t} catch ( qsaError ) {\n\t\t\t\t\t} finally {\n\t\t\t\t\t\tif ( nid === expando ) {\n\t\t\t\t\t\t\tcontext.removeAttribute( \"id\" );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// All others\n\treturn select( selector.replace( rtrim, \"$1\" ), context, results, seed );\n}\n\n/**\n * Create key-value caches of limited size\n * @returns {function(string, object)} Returns the Object data after storing it on itself with\n *\tproperty name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)\n *\tdeleting the oldest entry\n */\nfunction createCache() {\n\tvar keys = [];\n\n\tfunction cache( key, value ) {\n\t\t// Use (key + \" \") to avoid collision with native prototype properties (see Issue #157)\n\t\tif ( keys.push( key + \" \" ) > Expr.cacheLength ) {\n\t\t\t// Only keep the most recent entries\n\t\t\tdelete cache[ keys.shift() ];\n\t\t}\n\t\treturn (cache[ key + \" \" ] = value);\n\t}\n\treturn cache;\n}\n\n/**\n * Mark a function for special use by Sizzle\n * @param {Function} fn The function to mark\n */\nfunction markFunction( fn ) {\n\tfn[ expando ] = true;\n\treturn fn;\n}\n\n/**\n * Support testing using an element\n * @param {Function} fn Passed the created element and returns a boolean result\n */\nfunction assert( fn ) {\n\tvar el = document.createElement(\"fieldset\");\n\n\ttry {\n\t\treturn !!fn( el );\n\t} catch (e) {\n\t\treturn false;\n\t} finally {\n\t\t// Remove from its parent by default\n\t\tif ( el.parentNode ) {\n\t\t\tel.parentNode.removeChild( el );\n\t\t}\n\t\t// release memory in IE\n\t\tel = null;\n\t}\n}\n\n/**\n * Adds the same handler for all of the specified attrs\n * @param {String} attrs Pipe-separated list of attributes\n * @param {Function} handler The method that will be applied\n */\nfunction addHandle( attrs, handler ) {\n\tvar arr = attrs.split(\"|\"),\n\t\ti = arr.length;\n\n\twhile ( i-- ) {\n\t\tExpr.attrHandle[ arr[i] ] = handler;\n\t}\n}\n\n/**\n * Checks document order of two siblings\n * @param {Element} a\n * @param {Element} b\n * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b\n */\nfunction siblingCheck( a, b ) {\n\tvar cur = b && a,\n\t\tdiff = cur && a.nodeType === 1 && b.nodeType === 1 &&\n\t\t\ta.sourceIndex - b.sourceIndex;\n\n\t// Use IE sourceIndex if available on both nodes\n\tif ( diff ) {\n\t\treturn diff;\n\t}\n\n\t// Check if b follows a\n\tif ( cur ) {\n\t\twhile ( (cur = cur.nextSibling) ) {\n\t\t\tif ( cur === b ) {\n\t\t\t\treturn -1;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn a ? 1 : -1;\n}\n\n/**\n * Returns a function to use in pseudos for input types\n * @param {String} type\n */\nfunction createInputPseudo( type ) {\n\treturn function( elem ) {\n\t\tvar name = elem.nodeName.toLowerCase();\n\t\treturn name === \"input\" && elem.type === type;\n\t};\n}\n\n/**\n * Returns a function to use in pseudos for buttons\n * @param {String} type\n */\nfunction createButtonPseudo( type ) {\n\treturn function( elem ) {\n\t\tvar name = elem.nodeName.toLowerCase();\n\t\treturn (name === \"input\" || name === \"button\") && elem.type === type;\n\t};\n}\n\n/**\n * Returns a function to use in pseudos for :enabled/:disabled\n * @param {Boolean} disabled true for :disabled; false for :enabled\n */\nfunction createDisabledPseudo( disabled ) {\n\t// Known :disabled false positives:\n\t// IE: *[disabled]:not(button, input, select, textarea, optgroup, option, menuitem, fieldset)\n\t// not IE: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable\n\treturn function( elem ) {\n\n\t\t// Check form elements and option elements for explicit disabling\n\t\treturn \"label\" in elem && elem.disabled === disabled ||\n\t\t\t\"form\" in elem && elem.disabled === disabled ||\n\n\t\t\t// Check non-disabled form elements for fieldset[disabled] ancestors\n\t\t\t\"form\" in elem && elem.disabled === false && (\n\t\t\t\t// Support: IE6-11+\n\t\t\t\t// Ancestry is covered for us\n\t\t\t\telem.isDisabled === disabled ||\n\n\t\t\t\t// Otherwise, assume any non-